./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03418a136bc11572909cedd122c73f3018dec4c0350151db8d7a1fbae2324204 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:54:34,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:54:34,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:54:35,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:54:35,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:54:35,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:54:35,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:54:35,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:54:35,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:54:35,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:54:35,057 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:54:35,058 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:54:35,058 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:54:35,060 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:54:35,061 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:54:35,061 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:54:35,062 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:54:35,062 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:54:35,063 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:54:35,063 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:54:35,064 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:54:35,065 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:54:35,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:54:35,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:54:35,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:54:35,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:54:35,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:54:35,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:54:35,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:54:35,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:54:35,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:54:35,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:54:35,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:54:35,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:35,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:54:35,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:54:35,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:54:35,074 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:54:35,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:54:35,075 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:54:35,075 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:54:35,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:54:35,076 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03418a136bc11572909cedd122c73f3018dec4c0350151db8d7a1fbae2324204 [2023-11-12 00:54:35,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:54:35,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:54:35,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:54:35,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:54:35,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:54:35,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c [2023-11-12 00:54:38,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:54:39,013 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:54:39,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c [2023-11-12 00:54:39,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data/7c68755d1/d3877be4f12e4804ba0dcf0311f6f145/FLAG5c297abdc [2023-11-12 00:54:39,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data/7c68755d1/d3877be4f12e4804ba0dcf0311f6f145 [2023-11-12 00:54:39,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:54:39,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:54:39,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:39,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:54:39,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:54:39,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:39" (1/1) ... [2023-11-12 00:54:39,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd31fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:39, skipping insertion in model container [2023-11-12 00:54:39,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:39" (1/1) ... [2023-11-12 00:54:39,166 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:54:39,389 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c[1175,1188] [2023-11-12 00:54:39,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:39,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:54:39,969 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c[1175,1188] [2023-11-12 00:54:40,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:40,150 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:54:40,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40 WrapperNode [2023-11-12 00:54:40,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:40,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:40,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:54:40,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:54:40,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:40,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:41,319 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7685 [2023-11-12 00:54:41,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:41,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:54:41,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:54:41,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:54:41,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:41,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:41,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:41,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:42,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:42,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:42,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:42,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:42,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:54:42,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:54:42,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:54:42,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:54:42,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (1/1) ... [2023-11-12 00:54:42,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:42,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:42,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:54:42,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:54:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:54:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:54:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:54:42,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:54:43,203 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:54:43,205 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:54:49,174 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:05,177 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:05,177 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:05,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:05 BoogieIcfgContainer [2023-11-12 00:55:05,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:05,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:05,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:05,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:05,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:54:39" (1/3) ... [2023-11-12 00:55:05,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3acaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:05, skipping insertion in model container [2023-11-12 00:55:05,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:40" (2/3) ... [2023-11-12 00:55:05,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3acaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:05, skipping insertion in model container [2023-11-12 00:55:05,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:05" (3/3) ... [2023-11-12 00:55:05,191 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peterson.4.prop1-func-interl.c [2023-11-12 00:55:05,212 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:05,212 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:05,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:05,270 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@da7fa90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:05,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:05,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:55:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:55:05,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:05,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:55:05,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:05,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:05,286 INFO L85 PathProgramCache]: Analyzing trace with hash 296105057, now seen corresponding path program 1 times [2023-11-12 00:55:05,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:05,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175798957] [2023-11-12 00:55:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:05,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:06,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:55:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:07,023 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:55:07,025 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:55:07,028 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:55:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:55:07,034 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:55:07,039 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:55:07,099 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 00:55:07,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:55:07 BoogieIcfgContainer [2023-11-12 00:55:07,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:55:07,131 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:55:07,131 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:55:07,132 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:55:07,132 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:05" (3/4) ... [2023-11-12 00:55:07,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:55:07,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:55:07,139 INFO L158 Benchmark]: Toolchain (without parser) took 28069.21ms. Allocated memory was 125.8MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 77.5MB in the beginning and 7.0GB in the end (delta: -7.0GB). Peak memory consumption was 470.8MB. Max. memory is 16.1GB. [2023-11-12 00:55:07,139 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:07,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1079.39ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 77.2MB in the beginning and 64.2MB in the end (delta: 13.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-12 00:55:07,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 1181.38ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 64.2MB in the beginning and 98.8MB in the end (delta: -34.6MB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. [2023-11-12 00:55:07,147 INFO L158 Benchmark]: Boogie Preprocessor took 1235.23ms. Allocated memory was 255.9MB in the beginning and 469.8MB in the end (delta: 213.9MB). Free memory was 98.8MB in the beginning and 261.5MB in the end (delta: -162.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-12 00:55:07,148 INFO L158 Benchmark]: RCFGBuilder took 22610.23ms. Allocated memory was 469.8MB in the beginning and 7.6GB in the end (delta: 7.1GB). Free memory was 261.5MB in the beginning and 6.8GB in the end (delta: -6.5GB). Peak memory consumption was 773.9MB. Max. memory is 16.1GB. [2023-11-12 00:55:07,149 INFO L158 Benchmark]: TraceAbstraction took 1946.52ms. Allocated memory is still 7.6GB. Free memory was 6.8GB in the beginning and 7.0GB in the end (delta: -270.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:07,150 INFO L158 Benchmark]: Witness Printer took 6.11ms. Allocated memory is still 7.6GB. Free memory is still 7.0GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:07,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1079.39ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 77.2MB in the beginning and 64.2MB in the end (delta: 13.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1181.38ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 64.2MB in the beginning and 98.8MB in the end (delta: -34.6MB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1235.23ms. Allocated memory was 255.9MB in the beginning and 469.8MB in the end (delta: 213.9MB). Free memory was 98.8MB in the beginning and 261.5MB in the end (delta: -162.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * RCFGBuilder took 22610.23ms. Allocated memory was 469.8MB in the beginning and 7.6GB in the end (delta: 7.1GB). Free memory was 261.5MB in the beginning and 6.8GB in the end (delta: -6.5GB). Peak memory consumption was 773.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1946.52ms. Allocated memory is still 7.6GB. Free memory was 6.8GB in the beginning and 7.0GB in the end (delta: -270.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.11ms. Allocated memory is still 7.6GB. Free memory is still 7.0GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 196. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_38 = 0; [L40] const SORT_4 var_81 = 1; [L41] const SORT_4 var_82 = 0; [L42] const SORT_2 var_94 = 0; [L43] const SORT_3 var_115 = 0; [L44] const SORT_2 var_120 = 3; [L45] const SORT_2 var_126 = 2; [L46] const SORT_2 var_132 = 1; [L47] const SORT_4 var_156 = 2; [L48] const SORT_4 var_170 = 3; [L49] const SORT_4 var_313 = 4; [L50] const SORT_2 var_338 = 4; [L52] SORT_1 input_93; [L53] SORT_1 input_95; [L54] SORT_1 input_99; [L55] SORT_1 input_100; [L56] SORT_1 input_104; [L57] SORT_1 input_105; [L58] SORT_1 input_109; [L59] SORT_1 input_110; [L60] SORT_1 input_114; [L61] SORT_1 input_121; [L62] SORT_1 input_127; [L63] SORT_1 input_133; [L64] SORT_1 input_184; [L65] SORT_1 input_187; [L66] SORT_1 input_191; [L67] SORT_1 input_198; [L68] SORT_1 input_201; [L69] SORT_1 input_205; [L70] SORT_1 input_212; [L71] SORT_1 input_215; [L72] SORT_1 input_219; [L73] SORT_1 input_226; [L74] SORT_1 input_229; [L75] SORT_1 input_233; [L76] SORT_1 input_243; [L77] SORT_1 input_261; [L78] SORT_1 input_279; [L79] SORT_1 input_297; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L81] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L82] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L83] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L84] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L85] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L86] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L87] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L88] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L89] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L90] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L91] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L92] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L93] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L94] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L95] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L96] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L97] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L98] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L99] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L100] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L101] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L102] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L103] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L104] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L105] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L106] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L107] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L108] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L109] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L110] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L111] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L112] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L113] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L114] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L115] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L116] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L117] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_2 init_7_arg_1 = var_5; [L120] state_6 = init_7_arg_1 [L121] SORT_2 init_9_arg_1 = var_5; [L122] state_8 = init_9_arg_1 [L123] SORT_2 init_11_arg_1 = var_5; [L124] state_10 = init_11_arg_1 [L125] SORT_2 init_13_arg_1 = var_5; [L126] state_12 = init_13_arg_1 [L127] SORT_2 init_15_arg_1 = var_5; [L128] state_14 = init_15_arg_1 [L129] SORT_2 init_17_arg_1 = var_5; [L130] state_16 = init_17_arg_1 [L131] SORT_2 init_19_arg_1 = var_5; [L132] state_18 = init_19_arg_1 [L133] SORT_2 init_21_arg_1 = var_5; [L134] state_20 = init_21_arg_1 [L135] SORT_2 init_23_arg_1 = var_5; [L136] state_22 = init_23_arg_1 [L137] SORT_2 init_25_arg_1 = var_5; [L138] state_24 = init_25_arg_1 [L139] SORT_2 init_27_arg_1 = var_5; [L140] state_26 = init_27_arg_1 [L141] SORT_2 init_29_arg_1 = var_5; [L142] state_28 = init_29_arg_1 [L143] SORT_2 init_31_arg_1 = var_5; [L144] state_30 = init_31_arg_1 [L145] SORT_2 init_33_arg_1 = var_5; [L146] state_32 = init_33_arg_1 [L147] SORT_2 init_35_arg_1 = var_5; [L148] state_34 = init_35_arg_1 [L149] SORT_2 init_37_arg_1 = var_5; [L150] state_36 = init_37_arg_1 [L151] SORT_1 init_40_arg_1 = var_38; [L152] state_39 = init_40_arg_1 [L153] SORT_1 init_42_arg_1 = var_38; [L154] state_41 = init_42_arg_1 [L155] SORT_1 init_44_arg_1 = var_38; [L156] state_43 = init_44_arg_1 [L157] SORT_1 init_46_arg_1 = var_38; [L158] state_45 = init_46_arg_1 [L159] SORT_1 init_48_arg_1 = var_38; [L160] state_47 = init_48_arg_1 [L161] SORT_1 init_50_arg_1 = var_38; [L162] state_49 = init_50_arg_1 [L163] SORT_1 init_52_arg_1 = var_38; [L164] state_51 = init_52_arg_1 [L165] SORT_1 init_54_arg_1 = var_38; [L166] state_53 = init_54_arg_1 [L167] SORT_1 init_56_arg_1 = var_38; [L168] state_55 = init_56_arg_1 [L169] SORT_1 init_58_arg_1 = var_38; [L170] state_57 = init_58_arg_1 [L171] SORT_1 init_60_arg_1 = var_38; [L172] state_59 = init_60_arg_1 [L173] SORT_1 init_62_arg_1 = var_38; [L174] state_61 = init_62_arg_1 [L175] SORT_1 init_64_arg_1 = var_38; [L176] state_63 = init_64_arg_1 [L177] SORT_1 init_66_arg_1 = var_38; [L178] state_65 = init_66_arg_1 [L179] SORT_1 init_68_arg_1 = var_38; [L180] state_67 = init_68_arg_1 [L181] SORT_1 init_70_arg_1 = var_38; [L182] state_69 = init_70_arg_1 [L183] SORT_1 init_72_arg_1 = var_38; [L184] state_71 = init_72_arg_1 [L185] SORT_1 init_74_arg_1 = var_38; [L186] state_73 = init_74_arg_1 [L187] SORT_1 init_76_arg_1 = var_38; [L188] state_75 = init_76_arg_1 [L189] SORT_1 init_78_arg_1 = var_38; [L190] state_77 = init_78_arg_1 [L191] SORT_1 init_80_arg_1 = var_38; [L192] state_79 = init_80_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_6=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, var_115=0, var_120=3, var_126=2, var_132=1, var_156=2, var_170=3, var_313=4, var_338=4, var_38=0, var_5=0, var_81=1, var_82=0, var_94=0] [L195] input_93 = __VERIFIER_nondet_uchar() [L196] EXPR input_93 & mask_SORT_1 [L196] input_93 = input_93 & mask_SORT_1 [L197] input_95 = __VERIFIER_nondet_uchar() [L198] EXPR input_95 & mask_SORT_1 [L198] input_95 = input_95 & mask_SORT_1 [L199] input_99 = __VERIFIER_nondet_uchar() [L200] EXPR input_99 & mask_SORT_1 [L200] input_99 = input_99 & mask_SORT_1 [L201] input_100 = __VERIFIER_nondet_uchar() [L202] EXPR input_100 & mask_SORT_1 [L202] input_100 = input_100 & mask_SORT_1 [L203] input_104 = __VERIFIER_nondet_uchar() [L204] EXPR input_104 & mask_SORT_1 [L204] input_104 = input_104 & mask_SORT_1 [L205] input_105 = __VERIFIER_nondet_uchar() [L206] EXPR input_105 & mask_SORT_1 [L206] input_105 = input_105 & mask_SORT_1 [L207] input_109 = __VERIFIER_nondet_uchar() [L208] EXPR input_109 & mask_SORT_1 [L208] input_109 = input_109 & mask_SORT_1 [L209] input_110 = __VERIFIER_nondet_uchar() [L210] EXPR input_110 & mask_SORT_1 [L210] input_110 = input_110 & mask_SORT_1 [L211] input_114 = __VERIFIER_nondet_uchar() [L212] EXPR input_114 & mask_SORT_1 [L212] input_114 = input_114 & mask_SORT_1 [L213] input_121 = __VERIFIER_nondet_uchar() [L214] EXPR input_121 & mask_SORT_1 [L214] input_121 = input_121 & mask_SORT_1 [L215] input_127 = __VERIFIER_nondet_uchar() [L216] EXPR input_127 & mask_SORT_1 [L216] input_127 = input_127 & mask_SORT_1 [L217] input_133 = __VERIFIER_nondet_uchar() [L218] EXPR input_133 & mask_SORT_1 [L218] input_133 = input_133 & mask_SORT_1 [L219] input_184 = __VERIFIER_nondet_uchar() [L220] EXPR input_184 & mask_SORT_1 [L220] input_184 = input_184 & mask_SORT_1 [L221] input_187 = __VERIFIER_nondet_uchar() [L222] EXPR input_187 & mask_SORT_1 [L222] input_187 = input_187 & mask_SORT_1 [L223] input_191 = __VERIFIER_nondet_uchar() [L224] EXPR input_191 & mask_SORT_1 [L224] input_191 = input_191 & mask_SORT_1 [L225] input_198 = __VERIFIER_nondet_uchar() [L226] EXPR input_198 & mask_SORT_1 [L226] input_198 = input_198 & mask_SORT_1 [L227] input_201 = __VERIFIER_nondet_uchar() [L228] EXPR input_201 & mask_SORT_1 [L228] input_201 = input_201 & mask_SORT_1 [L229] input_205 = __VERIFIER_nondet_uchar() [L230] EXPR input_205 & mask_SORT_1 [L230] input_205 = input_205 & mask_SORT_1 [L231] input_212 = __VERIFIER_nondet_uchar() [L232] EXPR input_212 & mask_SORT_1 [L232] input_212 = input_212 & mask_SORT_1 [L233] input_215 = __VERIFIER_nondet_uchar() [L234] EXPR input_215 & mask_SORT_1 [L234] input_215 = input_215 & mask_SORT_1 [L235] input_219 = __VERIFIER_nondet_uchar() [L236] EXPR input_219 & mask_SORT_1 [L236] input_219 = input_219 & mask_SORT_1 [L237] input_226 = __VERIFIER_nondet_uchar() [L238] EXPR input_226 & mask_SORT_1 [L238] input_226 = input_226 & mask_SORT_1 [L239] input_229 = __VERIFIER_nondet_uchar() [L240] EXPR input_229 & mask_SORT_1 [L240] input_229 = input_229 & mask_SORT_1 [L241] input_233 = __VERIFIER_nondet_uchar() [L242] EXPR input_233 & mask_SORT_1 [L242] input_233 = input_233 & mask_SORT_1 [L243] input_243 = __VERIFIER_nondet_uchar() [L244] input_261 = __VERIFIER_nondet_uchar() [L245] input_279 = __VERIFIER_nondet_uchar() [L246] input_297 = __VERIFIER_nondet_uchar() [L249] SORT_1 var_83_arg_0 = state_41; [L250] SORT_4 var_83_arg_1 = var_81; [L251] SORT_4 var_83_arg_2 = var_82; [L252] SORT_4 var_83 = var_83_arg_0 ? var_83_arg_1 : var_83_arg_2; [L253] SORT_1 var_84_arg_0 = state_51; [L254] SORT_4 var_84_arg_1 = var_81; [L255] SORT_4 var_84_arg_2 = var_82; [L256] SORT_4 var_84 = var_84_arg_0 ? var_84_arg_1 : var_84_arg_2; [L257] SORT_4 var_85_arg_0 = var_83; [L258] SORT_4 var_85_arg_1 = var_84; [L259] SORT_4 var_85 = var_85_arg_0 + var_85_arg_1; [L260] SORT_1 var_86_arg_0 = state_61; [L261] SORT_4 var_86_arg_1 = var_81; [L262] SORT_4 var_86_arg_2 = var_82; [L263] SORT_4 var_86 = var_86_arg_0 ? var_86_arg_1 : var_86_arg_2; [L264] SORT_4 var_87_arg_0 = var_85; [L265] SORT_4 var_87_arg_1 = var_86; [L266] SORT_4 var_87 = var_87_arg_0 + var_87_arg_1; [L267] SORT_1 var_88_arg_0 = state_71; [L268] SORT_4 var_88_arg_1 = var_81; [L269] SORT_4 var_88_arg_2 = var_82; [L270] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L271] SORT_4 var_89_arg_0 = var_87; [L272] SORT_4 var_89_arg_1 = var_88; [L273] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L274] EXPR var_89 & mask_SORT_4 [L274] var_89 = var_89 & mask_SORT_4 [L275] SORT_4 var_90_arg_0 = var_89; [L276] SORT_4 var_90_arg_1 = var_81; [L277] SORT_1 var_90 = var_90_arg_0 <= var_90_arg_1; [L278] SORT_1 var_91_arg_0 = ~state_79; [L279] EXPR var_91_arg_0 & mask_SORT_1 [L279] var_91_arg_0 = var_91_arg_0 & mask_SORT_1 [L280] SORT_1 var_91_arg_1 = ~var_90; [L281] EXPR var_91_arg_1 & mask_SORT_1 [L281] var_91_arg_1 = var_91_arg_1 & mask_SORT_1 [L282] EXPR var_91_arg_0 & var_91_arg_1 [L282] SORT_1 var_91 = var_91_arg_0 & var_91_arg_1; [L283] EXPR var_91 & mask_SORT_1 [L283] var_91 = var_91 & mask_SORT_1 [L284] SORT_1 bad_92_arg_0 = var_91; [L285] CALL __VERIFIER_assert(!(bad_92_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:55:07,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03418a136bc11572909cedd122c73f3018dec4c0350151db8d7a1fbae2324204 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:09,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:10,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-12 00:55:10,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:10,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:10,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:10,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:10,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:10,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:10,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:10,074 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:10,075 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:10,075 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:10,077 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:10,077 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:10,078 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:10,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:10,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:10,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:10,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:10,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:10,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:10,082 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:55:10,083 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:55:10,083 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:55:10,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:10,084 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:10,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:10,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:55:10,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:10,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:10,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:10,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:10,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:10,088 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:55:10,088 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:55:10,088 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:10,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:10,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:10,090 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03418a136bc11572909cedd122c73f3018dec4c0350151db8d7a1fbae2324204 [2023-11-12 00:55:10,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:10,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:10,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:10,587 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:10,587 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:10,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c [2023-11-12 00:55:13,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:14,044 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:14,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c [2023-11-12 00:55:14,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data/357bcff02/771c4f24f03d469b9469e76e6fc41d2c/FLAG3d8d67802 [2023-11-12 00:55:14,079 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/data/357bcff02/771c4f24f03d469b9469e76e6fc41d2c [2023-11-12 00:55:14,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:14,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:14,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:14,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:14,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:14,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:14" (1/1) ... [2023-11-12 00:55:14,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470d2be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:14, skipping insertion in model container [2023-11-12 00:55:14,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:14" (1/1) ... [2023-11-12 00:55:14,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:14,374 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c[1175,1188] [2023-11-12 00:55:14,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:14,773 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:14,798 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.4.prop1-func-interl.c[1175,1188] [2023-11-12 00:55:15,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:15,060 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:15,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15 WrapperNode [2023-11-12 00:55:15,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:15,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:15,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:15,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:15,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,265 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2130 [2023-11-12 00:55:15,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:15,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:15,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:15,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:15,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:15,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:15,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:15,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:15,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (1/1) ... [2023-11-12 00:55:15,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:15,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:15,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:55:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:16,043 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:16,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:20,048 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:20,053 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:20,054 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:20,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:20 BoogieIcfgContainer [2023-11-12 00:55:20,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:20,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:20,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:20,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:20,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:14" (1/3) ... [2023-11-12 00:55:20,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f84402f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:20, skipping insertion in model container [2023-11-12 00:55:20,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:15" (2/3) ... [2023-11-12 00:55:20,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f84402f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:20, skipping insertion in model container [2023-11-12 00:55:20,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:20" (3/3) ... [2023-11-12 00:55:20,068 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peterson.4.prop1-func-interl.c [2023-11-12 00:55:20,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:20,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:20,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:20,139 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20490876, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:20,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:55:20,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:55:20,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:20,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:55:20,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:20,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-12 00:55:20,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:55:20,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588299111] [2023-11-12 00:55:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:20,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:55:20,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:55:20,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:55:20,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0740eb34-35bd-42eb-b7ab-1210878c172a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:55:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:20,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-12 00:55:20,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:55:21,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:21,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:55:21,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588299111] [2023-11-12 00:55:21,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588299111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:21,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:21,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:55:21,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135856418] [2023-11-12 00:55:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:21,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:55:21,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:55:21,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:55:21,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:55:21,408 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)